Heater



- w. F. ALLEN l l y 927 HEATER Original Filed Feb. 1, 1926 2 Sheets-Sheet '2 I V114 r" I'NIVENTOR VV/LL F/ILLEN AT EimEYs,

Reissued July 12, 1927.

wiminm r. ALLEN, or nnsnvrnns, rannassnn.

' imacrma.

original No. i,eo4,sea, dated This invention pertains to heaters and has particular reference to certain; improvements inhot air heaters of the type which. is designed to be placed in the room to be 5 heated and which includes an inner stove unit and an outer ornamental casing, simulating a piece of furniture, or of cabinet form for housing the inner unit and'for creating a circulation'of air to be heated between said units. Ordinarily'in this type of-heaters, the outer casing is kept closedexcept. when firing the same or removing the ashes so that the glow of the fire is hi'dden from view.

It is, therefore, the prime object of the present inventionto so construct the outer casing that the same may, at the option of the user, be opened in such a manner as to expose theglow of the fire without disclosing the unsightly parts which'are ordinarily visible when the outer casing of heaters of this type isopened. In other words, the invention coniprehends a heater of this character which is constructed in such a manner as to provide an ornamental opening in its outer casing in alinement with the transparent combustion chamber closure or door, which opening is provided with a closure capable of being either opened or closed and which when openedfdiscloses the glow of the fire.

V A further important object of the invention resides in the provision of a heater of this character which is so. constructed that when the closure in the outer casing is openedthe circulation of air generally through the air space between the outer casin and inner stove unit .is not materially afiicted and the heater functions generally in ordinary manner; but passage of air out through the opening in the outer casing is permitted so that local application of heat is effected both by the convection currents passing out through the opening and by radiation, it being understood that the glow of the fire is exposed; and yet the adjacent portions of the inner stove unit and the air space are. concealed from view.

The-invention further aims to provide an improvement in heaters of the character set forth, which is simple, inexpensive and etficient.

lVith the above recited and other objects in view, reference is had to the following October 26, 1926, Serial 110.85,!331, filed Febrnary l, 1926. reissue filed Kay 18, 1927. Serial No. 192,457.

Application for specification and accompanying drawings in 56 which there is exhibited one example or' einbodiinent -of the invention which is in no way intended as a limitation upon the s cope of the appended claims'as it is to be clearly understood that variations and modifications which properlyfall within the scope of 'said claims may be resorted to when found expedient. i

"In-the drawings:

Fig. 1 is a front perspective view of a heater constructed in accordance with the invention and illustrating the closure for the outer casing in opened condition to disclose the glow of th'efire;

Fig. 2 is an enlarged fragmentary horizontal sectional view therethrough taken approximately on the line indicated at 22 in ig. 1; v

Fig. 3 is an enlarged vertical sectional view therethrough taken approximately on the line 33 of Fig. 1.

Referring to the drawings by characters of reference, 10 designates an inner stove unit which includes a combustion chamber 11, a fire box 12, and an ash-pit 13. The combustion chamber 11 is provided with the usual opening 14 for firing the stove or introducing the .fuel thereto and is provided with a suitable closure, such as a pair of doors 15, which are hinged as at 16, said. 85 door having transparent paneled openings 17 through which the glow of the fire is visible.

In this type of heater, the inner stove unit is covered and concealed by the outer casing or housing 18 suitably spaced therefrom and provided with grille openings or gratings 19 to permit of the natural circulation of' air between the inner stove unit and the outer casing so that cold air is drawn into the lower portion, heated and expelled from above. In order to gain access to the closure doors 15 of the inner stove unit, the outer casing is provided with an opening 20 in alinenient therewith, which practically consists of a pair of hinged doors 21.

In order to permit of the leaving of the doors in an opened condition io expose the glow of the fire L0 the occupants of the room in which the heater is arranged. and at the same time, to conceal the unsightly parts of the inner stove unit and the air circ'ulatien spaces, the present invention com-- prehends a means for concealing such sightly parts which consists improvidirig. the closure doors 15, respectively, at then outer edges with lateral,forwardly-projecting angular extensions or wings. 22 extend edges of the front wall of the outer cas ing which defines the opening, which grille plates or gratings are 'of an ornamental nature and ,extends angularly inward, to a point adjacent the upper and lower edges of the closure doors 1'5. Under this arrangement, it is obvious that the wings 22 and gratings or grille elements 23 conceal the unsightly arts which would ordinarily be visible through the opening 20, while the grille plates or gratings 23 further. admit of the circulation of air to be heated which is taken in at the lowerortionof the heater and discharges th'roug the lower grille 'plate 23. The upper grille plate will admit of. an intake of air which will be heated and thence expelled through the top grilleworkor gratings 1.9.

A heater constructed according to this invention can be used with the doors in the outer casing closed or open, as elected. lVhen the doors are closed the entireinner .stove unit is concealed and the heaterfsiruu lates a piece of .fin-ni-ture. When operated with the doors closed a genem-l heaftlng feet is obtained, convection currents pass upwardly through the air heatingspace andont atthe top of the heater and then the air currents rise and separate to ellsi-des of the stove so that the. adjacent room. or surrounding space is given a' genera-Ieven heat. when the -stoveis operated with the outer casing doors open, the 'glbwof tlie fire i s'ex posed 5 thus the heater simulatesffa fireplace and provides the cheer and cona fdr tof an old time fireplace. When-'the outer doors are open local application of heat is effected; heat is radiated out throughthe opening and convection currents are fiiermitted to" pass out through the'opeuing. At the same time, however, the general flow of convec-- tio'n currents through the air heating chamber is not material y afie'cted,

It is to be noted that the local heating cf feet is accomplished largely by direct radiati=on. The use of transparent portions in the inner stove unit"permits radiant heat rays from the fire to be directed fi'eely outwardly. These rays of heat pass through the air and Warm objects, or an individualupon which they fall, withoutwarming "the air through which they pass..- In .tllis respect the advantages of a base burner using hard coal, which transparent portions are "pipeless -furnace,-and the radiant I. A heater including parent closure,-an outer customarily used, are obtained. By merely closing the opaque doors. the, manner in which the heater functions is changed so that general heating is had, as above described, whichis after the manner of the so-called heat'is very substantially cut down.

From the foregoing it will thus be seen that an improvement in heating plants of this characterihasbeen devised, which permits the glow of the fire to b'e'observed without disclosing the unsightly parts, and without in any way afl'ecting 'the'circulation oi the air to be heated.v .7

What is claimed I 30 I an inner heating unithaving a fuel feed-opening and a trans casing tmit'h'av-ing an opening alined with-the fuel feed open- 1ng,-an opaque closure for saidrope'nin andgme'a-ns provided respectively at the sides of the fuel feed closure andadjra-ce rrt the top and bottom of the opening in tint-miter casing unit for concealing the remainder-of. the inner unit and the air-circulatior'i'spaees between the :units .when the outer casin closure-is opened for the purpose-of. mg the glow-of the-fire, i f

2. A heater including an inner-heating unit having a fuel feed openingaud'a nails: parent closure, an outer casi'ngiun'i't an opening elined with the misshapenmg, "a closure ior said opening," provrded respectivelyi on the as; fuel tfeed fepening-elosmef and-adjacent 1 top; and bottom/of the opening irntheotttefi casing "unit iee'eoncealiug the teinaind'er the inner unit and the ia'ir circi'rlat'ionbetween the units i outer easing mg respectively of laterally and min-wear extending wings} on the fuel feed'op'enin clesure-and grille elements-at the an bottomefthe said outer-casing opening. 3.2a heater, including manner heating un t having a fuel: opening anda'clbsure, an (lasing spltc di thredrom' td-defitie an aw-euCtrlatiozi-jspac thereljetweep" and hay ing anopening 3in alihemnt' with the fuel,-

fuel-feed opening closure, saidextensiomj having openings permitting of the circalationof air, and inclined grille elements at the top, boteom'ef'said 'outer casing opening, "the said grille element's serving m air space and adjacent. portions of the inner permit 'ofthe' circulation of air when the outer casingis opened. Y

4." A heater including an inner heating unit having a fuel feed opening and a transarent closure and an outer casing unit aving an opening alined with the fuel feed opening, a' closure'forsaid latter opening, and means located adjacent the fuel feed opening for concealing the air circulation spaces between the units when the outer casingclosure isopened for the purpose of'exposing the glow of the fire, said means having-openings permitting of circulation of air 'therethrough. Y

54A stove com rising in combination, an

outer casing of ca inet form, an inner stove unit spaced from the outer casing to prowhich encloses g ewe the vide an'air' heating space, said outer casing having an opening with an opaque closure far concealing the stove unit from view, the stove unit having aftransparen't' wall portion' which is in alinement with the said 6"enin in the outer casing whereby .the fire is exposed when the opaque closures" are open and local heating is effected by radiation;

6v. A stqveco npnsing in combination an outer-casing of cabinet form, an inner stove unit spaced from the outer. casing to provide an air heating spacc,'n1eans near the bottom and the top of the outer casing for permitting convection currents to enter the air spacenear the bottom and leave near the top, said .outer casing having an opening, an-opaque closure for the opening for concealing the inner stove unit from view and for completing the wall of the outer casing "the air space, the stove unit havinga wallportion in alinement with the opening inthe outer casing which is made up of trans arent portions whereby the glow of the re is exposed when the ogaque closure is opened and local heating a ing an opening ect is obtained by radiation.

7. A s'tove comprising in combination an outer casing of cabinet form, an inner stove unit spaced from the outer casing toprovidc an air heating space, the'outer casing havprovided with a closure whereby general heating effect is" obtained b convection currents passing. through the air heating space when the said closure isclosed, the inner stove ,unit having a wall provided with transparent portions, said transparent ortions being in alinement with the opening in the outer casing whereby'the glow of the fire is exposed and local heating effect is obtained by direct radiation when the said closure is open, and

means adjacent the opening to conceal the I stove unit from view when the closure in the outer casing is open.

8. A stove comprising in combination an outer cabinet-like casing, an inner stove unit spaced from the outer casing to provide an air heating space, said outer casing having an opening with an opaque closure for concealing the stove unit from view,-the stove unit having a fuel feed opening in alinement with the opening in the outer casing member, and a closure for the fuel feed opening having transparent portions whereby the glow of the fire is exposed when the outer closure is opened.

,9. A stove comprising in combination an outer casing of cabinet form, an inner stove unit spaced from the outer casing to provide an air heating space, means permitting passage ofair into the air space near the bottom,

of the store through the space and out near the top of the'stove whereby general heating' is eii'ected by convection currents, said stove unit having a fuel feed opening and said outer casing having an opening in alineinent therewith, an opaque closure for the opening in the outer casing which conceals the inner stove unit from view, and a closure for the fuel feed opening, whereby localized heat by radiation may be efiectedwhen the closure and the outer casing-is opened, said closure for the fuel feed opening having ransparent portions which expose the glow of the fire when'the said opaque closure and the outer casing is open.

10. A stove comprising an outer casing of cabinet form, an inner stove unit spaced "from the outer casing to provide an air heating space, the outer casing having an opening provided with a closure and thestove having a fuel feed opening provided with a' closure, and in alinement with the opening ofthe outer casing, whereby a general heating effect is obtained by convection currents when the outer casing closure is closed, means adjacent some of the edges of the closures for concealing'the air space and adjacent portions of the inner stove unit when the outer casing closure is open, said means permittingthe passage of convection currents through the opening in the outer casin to effect. localized heating immediately adgacent the heater, and the fuel feed closure being transparent whereby local heating is aided by radiation, and means for controlling the flow of the convection currents through the air space.

11-; A stove comprising in combination an outeiycasing which simulates apiece of furniture, said casing having an opening therein,an opaque closure for said opening, an inner stove unit spaced from the outer casing to provide air heating space and which is entirely concealed from View 1 when the opaque closure is closed, said inner stove unit having a fuel feed'opening in alinement with the opening in the outer casing, a closure for the fuel feed opening providedv with transparent portions whereby the glow of the fire is exposed when the opaque closure: imthe :casirxgis 0551164 to simlflate a fimplnce, and means adiuoent one or .more edges of the openings to conceal the an spaee and adjaceni, portions-of tghe inner.

therein, an opaque closureaioq said. Opening,

an inner-shove unit spaced from-the outer easing to provide air heating space and which, isentirelry concealed from view when the oviqne closure is closed, said inner stove unit lawingyajfinel feed in alinement with the opening in the outer easing, acloisure ior-theafuel feed opening provided with trmmepaiselitportions whereby the glow 0f, the fire is when the opaque closure in easing is openedto simulate a fireplace, and meanslmijacennone or more edggmof the openings to onceal the air spaee and 'adjacent. portions of tke'inner stove unit from view when the opaque 010-- snleisq ned, some of said means bein'gin the ice-moi a grilleto permit. the passage of mnvectiq mntsvflielzethrough.

1&3. A-eihimet type. hmber -comprising an outer easing of eabinet form. having anrqyeu; ing provided with a hinged ckxsure m stove unit having a. fuel 'fieed -opening ili elinemen t with the opening in mg a. pair of hinged doors forelbsiilg the v fuel fieecl opening, each of said. doors having a wing arranged to bridge the spaee between. the. stove and i he outer casing when the ,f-nel openmg doors are closed. to coneeaI the. airspa,ce and adiaeenh porfionshf the inner stove unit. from view when the outer casimg doors'ame open .14,. ,A cabinet type heater 0 outer casing of cabinet form opening therein with, opgquefdoors an 1113161 thus expose, the glow of the fine, and partimeans adjacent. the lower edge and. the

two side edges of the openings;- in;- eoneeak mg the eitspape and zadgiaee'rih portions of e I the inner stove unit from view 7 WILLIAM F. 

